Thierry, I agree with all your comments about the severe economic challenges to introduction of a full 6x6 DMF camera (with 56x56mm sensor). But it will be hard to persuade people who are inclined to deny or ignore uncomfortable facts about large sensor costs, and to declare with no evidence that sensors (of a given large size) are getting substantially cheaper with time. The "faux Moore's Law" lives on.
Dear BJL,
I agree with you as well, but: a 6x6 sensor will most probably cost a "few" k's more than the current ones, and for the first (understand back manufacturer) to order it. Most probably it would be bound with an exclusivity agreement, which costs even (much) more. With time (and exclusivity) passing, the sensor costs would decline, obviously. The question is: who would be interested to go this way (6x6) and invest the first. I don't see any of the current players either having interests or financially able to do it, even more so when one knows what it would cost to re-vive the Hy6.
And on this comment
I presume that you are talking about the very limited selection of auto-focus lenses ever prdocuced for the Rollei/Hy6 cameras?
Yes, I do speak about the D-line of Schneider lenses which were planed and never manufactured, some never finished being designed. I am of course well aware that there are over 40 "old" Schneider, Zeiss lenses, from the Rolleiflex 600x series which do fit the Hy6 (some fit mechanically, but have proven to be problematic when from an older version), but unfortunately for the vast majority now not longer available (only on the second-hand market for some, and then in very little quantities). That's the reality.
Best regards,
Thierry